In the world of magic, witchcraft and wizardry you will find the frequent mention of words like curses hexes and spells. The former two words have a close association with black magic while the latter has a role to play in both white and black magic.
If things like supernatural and occult phenomena interest you then you can jolly well go for some books which will give you a clear and vivid idea about the limpid workings of spells, curses and hexes.
All of it deals with energy surrounding us and making use of the desires and wishes ruling the hearts of many to bring a change in the world. Now some of these desires are dark while others are benevolent ones.
The benevolent ones are always harmless and all happy and chirpy in every possible aspect. But the ones like curses and hexes or evil spells cast with the intention to dilapidate the conditions of people around are something which you bother about.
Even in ancient times people who practiced witchcraft actually suffered the results and were easy targets of other competitor witches and wizards. To ruin the career of the competitor, curses and hexes were cast very easily.
The practiced ones could feel the coming of a hex or curse before it managed to hit them. They could feel the vibe of the negative energy utilization of desires of some person and could cast a spell to make it rebound back or manage to create a protective or defensive shield. This shield would actually create a protective zone of positive energy around them that would prevent the entry of the negative energy of a curse or hex inside it and thus save those people.
Moreover a hex is a little less powerful than a curse. It dealt with victimizing the aura of a person. So fighting the effects of a hex is believed to be a little easier. It works in such a way that it harms the persona of any individual.
For example if someone wishes to break a good long lasting love relationship,he or she may use a hex on a person in such a way that he or she would grow detestable to such an extent that his lover would be compelled to desert him and move on in life.
A curse has an even stronger impact. It may have a very long lasting effect and hits the blood of the victim. For this reason the bloodline of the person gets affected, in these curses the effect is visible for generations as it becomes a family curse. On the other hand as previously mentioned a spell can be evil or it can be nurturing.
If these things interest you then you can lay your hands on books which provide sufficient information in this field.